Research on Heterogeneity Microstructure of <b>5083</b> Aluminum in Nugget Zones after Friction Stir Welding

Liang Chun-lang; Yuan Ge-cheng; Wu Hong-hui; Wu Ya

doi:10.3969/j.issn.1007-7162.2013.03.023

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Research on Heterogeneity Microstructure of 5083 Aluminum in Nugget Zones after Friction Stir Welding

更新时间：2026-05-27

- Research on Heterogeneity Microstructure of 5083 Aluminum in Nugget Zones after Friction Stir Welding
- Vol. 30, Issue 3, Pages: 118-121(2013)
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- DOI：10.3969/j.issn.1007-7162.2013.03.023
  CLC：
- Online First：30 September 2013，
  
  Published：2013
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梁春朗, 袁鸽成, 吴红辉, 吴亚. 5083铝合金搅拌摩擦焊焊核区非均匀性组织分析[J]. 广东工业大学学报, 2013, 30(3): 118-121.

Liang Chun-lang, Yuan Ge-cheng, Wu Hong-hui, et al. Research on Heterogeneity Microstructure of 5083 Aluminum in Nugget Zones after Friction Stir Welding[J]. 2013, 30(3): 118-121. DOI: 10.3969/j.issn.1007-7162.2013.03.023.
梁春朗, 袁鸽成, 吴红辉, 吴亚. 5083铝合金搅拌摩擦焊焊核区非均匀性组织分析[J]. 广东工业大学学报, 2013, 30(3): 118-121. DOI： 10.3969/j.issn.1007-7162.2013.03.023.

Liang Chun-lang, Yuan Ge-cheng, Wu Hong-hui, et al. Research on Heterogeneity Microstructure of 5083 Aluminum in Nugget Zones after Friction Stir Welding[J]. 2013, 30(3): 118-121. DOI: 10.3969/j.issn.1007-7162.2013.03.023. DOI：

摘要

利用小型搅拌摩擦焊机焊接5083铝合金板材，借助电子背散射衍射技术和取向成像分析软件对焊缝焊核区的焊核前进侧、焊核中心区和焊核后退侧的晶粒形貌和取向差角度进行了对比性研究.结果表明：经过搅拌摩擦焊接后，焊核区发生动态再结晶，晶粒由原始带状转变为等轴状，其大角度晶界含量相比于母材有明显增加，但不同部位的晶粒尺寸和大角度晶界比例均不同，焊核前进侧、焊核中心区和焊核后退侧的平均晶粒尺寸分别为17.0、15.8和13.5 μm，大角度晶界比例分别为76.4%、68.8%和73.2%.

Abstract

The 5083-H321 aluminum magnesium alloy plates were welded on a minitype friction stir welding machine. The microstructure of friction stir welding (FSW) in each nugget zone was studied via the grain morphology and misorientation distribution of nugget advancing side

nugget median zone and nugget retreating side. The results show that there are small equiaxial grains into which lath-shaped grains turn in nugget zones after friction stir welding. However

there are differences in the grain size between the nugget advancing side

nugget median zone and nugget retreating side

and the average grain sides are 17

15.8 and 13.5 μm

respectively. Compared with the base metal

the high angle grain boundaries(HAGB) fraction in nugget zones increase. Meanwhile the content is also different in the three zones

and they are 76.4%

68.8% and 73.2%

respectively.

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Research on Heterogeneity Microstructure of 5083 Aluminum in Nugget Zones after Friction Stir Welding

DOI：10.3969/j.issn.1007-7162.2013.03.023

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Abstract

关键词

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